moore



' (No Model.) 2 Sheets-Sheet 1.

vC. G. MOORE.

' oIL BURNER.

10.528,336. .Patented ocaso, 1894.

W Vy- Mama-Q 2 Sheets-Sheet 2.

(No Model.)

G. Gr.y MOORE. OIL BURNER.- v

No. 528.336. Y Patented oct. so, 1894.

Zz 65.565: l v .nue/Z316 (Zaag/gl o'or@ UNITED STATES PATENT OFFICE.

CHAUNOEY G. MOORE, OF INDIANAPOLIS, INDIANA, ASSIGNOR OF ONE-HALF TO THOMAS F. `SCULLIN, OF SAME PLACE.

in-BURNER.

SPECIFICATION forming part of Letters latent No. 528,836, dated October 30, 1894.

Application tiled January l0, 1894' Serial No. 496,393. (No model.l

special reference to improvements in burnersl f to be used in heating steam boilers and the the grooves.

like, in Which a high temperature and'a uniforrnand continuous heat are required.

The accompanying drawings illustrate my invention.

Figure l is a view in side elevation `of my complete burner detached from the furnace in which it will be used. Fig. 2 is a plan view of same also detached from the furnace. Fig. 3 is a View in longitudinal vertical section showing theinside construction of the burner. A portion of the near side ofl the inner spirally tioned inl order to show the construction of Fig. 5 is a transverse section ofv the burner through the line y y, of Fig. 3.

, Similar letters refer to like parts throughout the several views of the drawings.

A is the outside cylindrical tube of the burner. One end is provided withv outside threads by means of which an additional section of the burner is attached in the manner hereinafter to be described. The opposite end of the cylinder A terminates in a tapering construction A having a central opening and forming a nozzle through which the combustible material will be discharged into the furnace. i

a is an inlet or opening located near the threadedv end of the cylinder A and is connected by means of the pipe A2, with an oil tank or reservoirlocated ata suitable distance away from the furnace to be safe from danger of explosion from the fire, and suitably elevated to give the vnecessary head or pressure required to force the oil through the burner in the manner as will be fully explained.

Fig. 4 is a transverse section of*v the burner through the line x 00, of Fig. 3, and

B is a second'tubular cylinder having an outside diameter equal to the diameter of the bore of the tubular cylinder A and is adapted to be inserted within said tube A as is shown in Figs. 3 and 4.

The Walls of the-inside tubular cylinder B- end of the tube B, in an opening b2 which communicates with the inside'of the tube B.

B is a nozzle bent at right angles and having one end inserted in the opening h and so proportioned and placed Vthat the other end and the passage leading up to it will be approximately aligned with the axis of the tube B, the outlets to both nozzles, A and B', being in the same direction. The construction as above described, provides a conduit for the oil, which, as previously related, will b e supplied fro'm a reservoir ythrough the pipe A2 andy through the opening, o., into the spiral groove 1b, and'dischargedinto the burner The end of the tube A opposite the nozzle is closed by means of the cap or end piece C. This end piece is cupped out on one side so as to form a continuation of the bore of the tube B and is placed with the cuppedsidein. It is also provided with a flanged rim C which lits up against the ends of both of tlie'tubes A and B and is held in placeby means. of the coupling D which fits over the vend piece C and screws onto the threaded end ofthe tube A as is clearly shown in Fig. 3. l

l)3 is a nozzle projected into the burner from the bottom of the cupped side of the end piece C. The opening through the nozzle communicates with the steam supply pipe D and terminates in the central opening d aligned with the longitudinal axis of the tube B. The supply pipe D communicates with the steam boiler and supplies the live steam to the burner. f

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Da are diagonal openings (preferably four) enterlng the nozzle at an acute angle to the longltudinal axis of the burner, and are for the purpose of discharging the steam more dlrectly against the Walls of the tube Bin order to heat them and to raise the oil in the grooves to the highest possible degree of temperature, and the object in providing *the` from the outside.

0n each side of the end piece C and communicating with its interior, are the air supply pipes E. It has been found by practice that better results are obtained by taking the heated air direct from the combustion chamber of the furnace and for that reason the pipes E, after leaving the walls of the end C are bent and projected forward into the combustion chamber and are continued a sufficient distance to prevent the dame in the furnace from passing back through the tubes into the burner.

Bymy construction as above described, thev hot air and the steam are united andthe oil t introduced at such a high temperature that it immediately volatilizes and combining with the 'steamand air is thoroughly mixed and the mixture discharged from the nozzle A in the form of a very inflammable gas which yields an extremely hot Iiame when ignited. No residue is left in the burner nor is deposited on the grate bars of the furnace as is the case with oil burners heretofore.

I have here shown the grooves for the passage of the oil as running spirally around the walls of the tube B, but I do not wish to limit the construction to spiral grooves. It is evident the grooves might run in a coil longitudinally between the tubes A and B, or the groovesmight be merged into one or more chambers or a jacket that would subject the oil to the action of the heat.

Special attention is called to the construction and the location of the oil nozzle B by which the oil instead of being delivered into the burner near the steam inlet, asis usually done, is delivered near the discharge end of the burner and by the downwardly depending construction of the nozzle with its enlargement forrning the valve seat, that portion of the outfiowing current of air and steam coming against the obstruction formed by the nozzle is turned aside and a trough is thus formed in the current into which the oil from the end of the nozzle is deposited and is forced out with the air and steam. The current reuniting immediately after it leaves the nozzle completely surrounds the oil rendering its escape impossible and by subjecting it toa heat from all sides, therebymore readily volatilizing the oil and causing it to mix with more thoroughness with the steam and air. Where the the oil is admitted near the place where the steamcomes into the burner and is allowed to drop down upon the current of steam from some point above, as is usually done, the swiftly moving current of steam simply throws the oil aside by its own impetus and the oil falls to the bottom of the burner. The volume of steam being smaller at the point of entry there is more room in consequence for the oil to fall aside than if introduced near the outlet where the current has had opportunity to expand.

I claim- 1. In a hydro-carbon burner, the combination of a central chamber for the passage of steam and air, steam and air inlets at one end of said chamber, a com mon outlet thereforat the other end, an annular oil chamber surrounding the central chamber, an oil inlet into said annular chamber communicating with the oil supply, and an oil outlet discharging into said central chamber, said outlet being directed downwardly from the annular chamber to about the axial line of said chamber, and thence along saidaxial line, substantially as described.

2. In a hydro-carbon burner, the combination of an inner casing, an endcap inclosing lthe --rear end thereof and containing steam and air openings discharging into said casing, an outer casing surrounding the inner casing and forming therewith an oil chamber, anoil inlet pipe near the rear end of said chamber, a 4spiral rib extending radially from one casing to the other, and longitudinallythelength of the oil chamber, the distance between two consecutive threads of said rib beingapproxi- `mately equal to the diameter ofthe oil inlet,

whereby a spiral oil passage of said diameter is formed around the air and steam chamber, and an oil outlet at the front end of said passage discharging into the steam and air current, substantially as described.

3. In a hydro-carbon burner, the combination of a steam and air draft chamber, an oil chamber surrounding the draft chamber, an oil outlet at its front end discharging into the steam and air current, and an end cap or cover at the rear end of the draft chamber, carrying an air inlet pipe, and a steam `,nozzle, the latter directed into said draft chamber and comprising a main steam vent directed along the draft chamber and divergent steam vents directed toward the walls of the draft chamber to heat the same, and thereby heat the oil in its passage through said oil chamber, substantially as described.

In testimony whereof `I affix my signature in presence of two witnesses.

CI-IAUNCEY G. MOORE.

Vitnesses:

JOSEPH A. MINTURN, WM. HAFER.

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